Distribution and Speciation Transformation of Hazardous Trace Element Arsenic in Particulate Matter of a Coal-Fired Power Plant
Distribution and Speciation Transformation of Hazardous Trace Element Arsenic in Particulate Matter of a Coal-Fired Power Plant
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燃煤电厂颗粒物中有害微量元素砷的分布及形态转化
DOI：
10.1021/acs.energyfuels.8b00472
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发表时间：
2018-04
期刊：
影响因子：
--
通讯作者：
Xiaobing Gu
中科院分区：
文献类型：
--
作者：
Shilin Zhao;Yufeng Duan;Cong Chen;Hao Wu;Deye Liu;Meng Liu;Jianhong Lu;Xiaobing Gu
燃煤排放的颗粒物（PM）会对人类健康和环境造成极大危害。颗粒物中有害微量元素砷（As）的存在加剧了其毒性。在这项工作中，四种粒径的粉煤灰颗粒物（PM10）在……之前（句子不完整）
Particle matter (PM) emitted from coal combustion can cause great harm to human health and the environment. The existence of hazardous trace element arsenic (As) in PM intensifies its toxicity. In this work, four particle sizes of fly ash PM (PM 10) before the electrostatic precipitator (ESP) in a 600 MW coal-fired power plant were sampled by a Dekati low pressure impactor (DLPI). The coal sample, bottom ash, and ash from ESP (ESP ash) were collected simultaneously. Concentrations of total and valent As (As3+ and As5+) in the sample were determined by the inductively coupled plasma-mass spectrometry (ICP-MS) and high performance liquid chromatography (HPLC) coupled with ICP-MS, respectively. The morphological structure and chemical components of the PM surface were characterized by scanning electron microscopy (SEM) and X-ray fluorescence spectrometry (XRF). Results show that the coal used for the power plant is low-sulfur and low-chlorine bituminous coal with 3.851 mg/kg of As. T...